US2005108005A1

5G,4G,3G,2G

Title

Method and device for adaptive bandwidth pitch search in coding wideband signals

Application Number:

US20040964752

Publication Date:

19-05-2005

Family ID:

Application Date:

15-10-2004

Declaring Company:

Publication Country:

US

Priority Date:

27-10-1998

Title

Method and device for adaptive bandwidth pitch search in coding wideband signals

Application Number:

US20040964752

Family ID:

Publication Country:

US

Publication Date:

19-05-2005

Application Date:

15-10-2004

Priority Date:

27-10-1998

Declaring Company:

Abstract  Abstract

A pitch search method and device for digitally encoding a wideband signal, in particular but not exclusively a speech signal, in view of transmitting, or storing, and synthesizing this wideband sound signal. The new method and device which achieve efficient modeling of the harmonic structure of the speech spectrum uses several forms of low pass filters applied to a pitch codevector, the one yielding higher prediction gain (i.e. the lowest pitch prediction error) is selected and the associated pitch codebook parameters are forwarded.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.